40 years of icons: the evolution of the modern computer interface

If personal computing has a single birthday, it very well might be December 19, 1968. That day, Douglas Engelbart took the stage at Brooks Hall in San Francisco to demonstrate the system he and colleagues at the Augmentation Research Center had spent nearly ten years building. They called it NLS, for oNLine System, and over the next 90 minutes Engelbart would reveal just how far they’d progressed.